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【单选题】
下列物质不属于食品添加剂的是( )。A.
漂白剂
B.
色素
C.
防腐剂
D.
苏丹红
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举一反三
【单选题】For GMDSS，when may a compulsory vessel not be allowed to leave port ________．
A.
When the vessel is in an overloaded condition
B.
When the vessel has arranged for both duplication of equipment AND shore-based maintenance
C.
When the vessel has replaced a required piece of GMDSS-related equipment but its performance has not been verified or logged
D.
When the vessel is carrying only two licensed GMDSS Radio Operators and is capable of performing all required functions
【单选题】用盐酸溶液滴定Na2CO3溶液的第一、二个化学计量点可分别用( )为指示剂。
A.
甲基红和甲基橙;
B.
酚酞和甲基橙;
C.
甲基橙和酚酞;
D.
酚酞和甲基红;
E.
溴甲酚绿—甲基红;
【单选题】The Master of a vessel may tender a Notice of Readiness to the charterer when the vessel ______.
A.
has completed the terms of the charter party
B.
is in all respects ready to load
C.
is in all respects ready to sail
D.
is safely moored or at a suitable anchorage
【单选题】When shall the stand-on vessel in a crossing situation take action to avoid the other vessel?
A.
When a risk of collision exists.
B.
When action by the give-way vessel alone will not prevent a collision.
C.
When the bearing to give-way vessel becomes steady.
D.
When the vessels becoming less than 1/2 mile apart.
【单选题】When shall the stand-on vessel in a crossing situation take action to avoid the other vessel（）.
A.
When a risk of collision exists
B.
When action by the give-way vessel alone will not prevent a collision
C.
When the bearing to give-way vessel becomes steady
D.
When the vessels become less than 1/2 mile apart
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